Glxte dissolves



April 24, 1928. 1,667,339

F. c. ZIMMERMAN I GLUE DISSOLVER AND CONVERTER Filed May 19, 1927 Zfl.22 I 2/ 1? z? I A5 3 T 3/ A? I: T

INVENTOR.

i l ('1 Z i mmernuzn A TTORNEY.

Patented Apr. 24, 1928.

UNITEDSTATES FRANCES C. ZIMMERMAN, 0F CINCINNATI, OHIO.

GLUE DISSO LI TER AND CONVERTER. 1

Application filed May 19,

Thisinvention relates to glue converters or dissolvers, and particularlyto certain improvements in the apparatus patented by Charles M.Zimmerman, #989,101, granted April 11, 1911. a s

The constructionillustrated in this patent shows a glue jelly containingvessel which discharges into a catch basin, which in turn discharge intoa glue reservoir or container. The vessel and the catch basin areillustrated as being disposed within an outer tank and steam isillustrated as being discharged into the interior of this tank andcirculating around the glue dissolving vessel and around the catchbasin. In this construction, however, the catch basin is separated fromthe glue dissolving vessel so that steam circulates not only around thedissolving vessel and catch basin but enters into the dissolving vesseland comes in contact with the glue. Inasmuch as itisessential that theglue shall be mixed in certain quite accurate proportions with the waterso as to give a certain definite consistency to the glue, thecirculationofthe steam in contact with the glue tends to cause the glueto take up an additional amount of moisture and thus change theconsistencyfrom what has been predetermined. i a

The general object'of the present invention is to provide a constructionof this character wherein the glue dissolving vessel has steam-tightcontactwith the catch basin so thatthoughthe dissolving vessel may beremovedirom. its engageni'ent with the catch basin to permit thethorough cleansing of the catch basin, yet the steami will not come indirect contact with the glue. 1 T

A further object is to provide a screen disposed within the catch basinfor the purpose of preventing the passage of any undissolved glue intothe I glue reservoir..

Other objects will appear, in the course of thegtollowing description. 1

(My invention is illustrated in theiaccompanying drawing,iwherein p aThe figure is a vertical sectional view througha glue converterconstructed in accordance with my invention .Reierringto thewdrawing, 10designates an outer vessel or tank, which issupported in spaced relationby means not shown to a dissolved glue tank 12, beneath which is a tank13 for the water of condensation. Disposed withinthecontainer or tank 10is a circular 1927. Serial No; 192,666.

the melted glue chamber 12 so as to discharge melted glue thereinto.This catch,

1 basin 1 1 is held in position within the tank 10 in any suitablenanner as, for instance, by the outwardly projecting centering arms 17.The upper end of this catch basin is formed with an overturned head 18,and dis posed within the catch basin and resting upon a the lower endthereof is the screen 19, this screen acting to retain any lumps ofundissolver glue and prevent these lumps of undissolved glue frompassing downward into the glue pot or glue chamber 12.

Adapted to rest upon and be supported by thecatch basin 14 is the gluedissolving and melting vessel 20. The bottom of this vessel is formed'toprovide a bead 21 which fits over the bead 18 and has practicallysteamtight contact therewith so that the steam can not pass up betweenthe top of the catch basin and the bottom of the vessel 20. Within thecircle defined by the bead 18, the bottom of the vessel 20 isperforated, as at 22 so as to permit the dissolved glue to pass into thecatch basin. The upper end of the vessel 20 is-provided with handles 23whereby it may be lifted out of the converter.

The upper end of the converter has attached thereto the inwardlyextending flange 24 constituting a drip trough, and adapted to close theupper end of the converter is the cover 25 provided with handles andhaving a central opening 26. The cover is formed with a flange 27 whichisadapted to fit tightly againstthe outer wall of the .tank or steamchamber 10. Leading from the trough formed by the wall 24 is a duct 28which leads downward and discharges into the lower portion of the tank10. Thus any water which is condensed upon the conical cover or lid 25will be discharged downward into this trough 2d and from thence willpass down into the lower portion of the tank.

'The tank is provided with a pipe 29 for admitting steam to the interiorof the tank, this pipe at its inner end having a distributor 30 so astocause the steam to be evenly distributed within the interior of the tank10. Suitable means is provided for controlling the amount of steam whichwill enter or controlling the pressure of this steam.

ill

The lower end of the tank 10 is also con nected by a pipe 31 to thewater chamber 13 so that Water condensed from the steam can Water supplyand provided with a ball cocle or some like arrangement for the purposeof causing Water to enter the cliainbcr in case the watertherein isexhausted. Under ordinary circumstances, however, the condensed steamwill supply suliicient Water tovlteep the chamber full. The Water in thechamber 13 will keep the dissolved glue hot.

In the use of this mechanism, the vessel 20 is to be tilled withparticles of glue and a sutliciency oifwater applied thereto. Thisvessel is then set into a. pan until the glue reaches a jelliiied state,and'then the vessel is renmved from this pan and d sposed with in theconverter. The cover is then closed and steam admitted to the interiorof; the tank 10. The glue Within the vessel 20 will be melted ordissolved very quickly by the circulation of steam around the exterioroi the vessel and around the catch basin and the dissolved glueWllll'lOW downward into the catch basin and so into the glue containerl2The advantage of the construction which I have devised over that shownin the patent to Ziinnnerman is that the steam does not come in contactwith the glue at all, and funther in thatthe stean'i causes a more rapiddissolving ot the glue by contacting with the bottom of the vessel asWell as the side thereof or v 'iorly ot the catch basin and steamsurrounds the catch basin so as to keep hot the glue therein and alsosurrounds the pipe 16. Thus the glue is not only heated Within thevessel 20 but the glue taliing into the catch basin and somewhat heldback by the screen 19 is kept thoroughly heated Without, however, comingin direct contact with the steam.

The construct-ion is such that the interior oi this catch basin may bevery readily cleaned by simply removing the vessel 20, and it is obviousthat the catch basin'itselt may be so termed as to be readily removableby having the neck 16 extend down through an opening inthe bottou'i ofthe tank 10. This permits the tank 10, catch basin, and the vessel 20 tobe thoroughly cleansed of glue. By separating the vessel 10 from the topof the glue container 112, it is possible to provide a lid 11 on theglue container which will permit ready access thereto for the purpose ofnoting the consistency of the glue and its character at any time.gluechamber is, of course, provided with a draw-oil cock such, forinstance, as that shown inthepatentto Zimmerman, #971,-

The

337, granted on September 27, 1910. The various parts are preferablymade of copper and supported upon legs.

Ithas been found in actual practice that ;a glue"converter;constructedin accordance with my invention melts the glue very quickly and:almostinstantaneously, and in particular prevents the glue from beingcontaminated byforeign matter, such as com pounds used in cleaningboilers or steam. generators which would otherwise come into contactwith the glueand become dissolved therein in the 1 process of melting ordissolving the glue if the steam came in direct contact with the glue.

The central opening of the cover provides means whereby any steam whichescapes between the top of the glue dissolvingvessel and theouterjacltet ortank may pass oil and the water o'fcondensation from suchsteam is caught by the trough formed by the Wall 24 and carried into thelower portion of thetanlt. The opening 27 also pro vides for the Workmanpouring cold glue back intothe converter. By spacing the dissolved gluecontaining tank 12 from the lower end otthe tank '10, I provide foropening the door 11 and thus permit easy access to be had to theinterior ofthe tank 12.

I claim a 1. A'glue convertecand dissolver-of the character describedcomprising an outer tank having a removable coverand means for admittingsteam thereto, a vertieall extended catch'basin open at its upper enc,having a diameter lessthan the diameter of the outer tank and havingits bottom spaced from the bottom of the outer tank anclhaving adischarge pipe extending through the bottom of the tank, and a vesseltorrcontaining dis solving glue having a diameter less than the diameterof the tank and adapted to be inserted thereinnnd having substantiallysteam-tight engagement with the top ofthe catch basin but removabletherefrom," the central portion of the vessel circumscribed by the Wallof the catch basin having perforations.

2. A glue converter and dissolver 0f the character described comprisingan outer tank having aremovable cover andmeans "for admitting steamthereto, an axiall elongated catch basin less in diameter t anthe tank,open at its upper end and havinga discharge pipe extending through thebottom of the tank, the bottom ofthe catch basin being spaced from thebottom of the tank wherebyto permitthe circulation of steam allaroundthe catch'basin'andnbeneath the same and avessel for containingdissolving glue having a diameterlessthan the diameterof the tank andadapted to be inserted therein and having substantially steam-tightengagement with the top of the catch basin but removable therefrom, the

able screen therein.

3. A glue converter and dissolver of the character described including atank constituting a steam jacket and having a removable cover havingsteam-tight engagement with the tank, means for carrying water ofcondensation from the cover to the bottom of the tank, an axiallyelongated catch basin detachably mounted within the tank having an outerdiameter smaller than that of thetank and the bottom of the catch basinbeing spaced from the bottom of the tank and having a tubular portionextending through the bottom of the tank, a glue dissolving vesselremovably disposed within the upper portion of the tank and resting uponthe catch basin, the catch basin having a diameter smaller than that ofthe vessel and the bottom of the vessel having perforationscommunicating with the interior of the catch basin, and means foradmitting steam to the interior of the tank.

4. A glue converter and dissolver of the character described including atank constituting a steam jacket, the upper endof the tank having aninwardly extending wall forming a trough for the water of condensation,means for conducting water gathering in said trough into the lower endof the tank, an axially elongated catch basin of smaller diameter thanthe tank and mounted Within the tank and spaced at all points from thewall and bottom of the tank and having a tubular portion extendingthrough the bottom thereof, a glue vessel removably disposed within theupper portion of the tank and resting upon the catch basin and havingsteam-tight engagement therewith, said clissolving vessel having anaperture discharging into the catch basin, the upper end of glue vesselhaving tight engagement with the inwardly projecting wall. and a coverremovably engaging the top of the tank.

In testimony whereof I hereunto aflixmy signature.

FRANCES C. ZIMMERMAN.

